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Old 09-17-2007   #485 (permalink)
Worm324
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Default Re: Understanding Exposure

Quote:
Originally Posted by KellyL View Post
Glenn, had I underexposed a half a stop, then I would have set my shutter speed to 160? Slower shutter speed lets more light in, so a shutter speed of 50 would have blown all highlights. A shutter speed of 160, as Jay did, would darken (?) the picture or the sky? Numbers going in the opposite direction of their function confuse me easily. It wasn't until I saw the F stop as a division problem that I could easily make sense of it.
Kelly, Thanks for the props my friend Exposing for the sky was key. Thats all that mattered to me in my shot. I knew if the sky looked good I could possible get the shot I wanted. What I didn't know, was what the flash would do. That's what I'm trying to learn/ predict. If the flash didn't do what I was hoping, than my shot was just not meant to be. That was what I was thinking anyways

In my case the sky metered at f/11 1/200sec aimed right at the clouds. I lowed the shutter 1 setting which was 1/160sec (I believe that is 1 stop? I really don't know) I figured that would still offer a great sky and allow for jonny to look a little bit brighter so the flash would not have to work so hard.

I was shooting at about 6pm as you stated. That compared to 3pm makes a huge difference!! The sun has to go through so much more atmosphere at the angle I shot at vs your sun angle. Therefore I had less harsh light than you to work with. My shot was much easier to expose for based on the lighting than yours IMO.

Now, for your shot. I think that is a perfect example of not enough Dynamic range to get the exposure you wanted. Thats a scenario where you have to be like, My camera can't do it, so what can I do to make the best of it?? Underexpose and recover in post. Thats what I would have done anyway

Kirk is correct if the flash would have worked for you, but with no flash your screwed. The only option I can see is to underexpose and recover, or blow the highlights and have most of the subject look good.

On a slight side note, How far is your flash effective??

Crotographer, Great advice and thanks for sharing your thoughts!

Best,
Jay
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